If the prompt is asking
that's a different story, but I'd need to know more before answering.Is the median of the set {6, 15, j, k} greater than 10?
Median Values Question
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Matt@VeritasPrep
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It's impossible to tell what the prompt is giving us. 15 * j * 6 * k is an expression, not a set, so we don't know the set whose median we seek or how to do anything with 90jk.
If the prompt is asking
If the prompt is asking
Thanks Matt sorry it's my keyboard problem, your quote is correctMatt@VeritasPrep wrote:It's impossible to tell what the prompt is giving us. 15 * j * 6 * k is an expression, not a set, so we don't know the set whose median we seek or how to do anything with 90jk.
If the prompt is asking
that's a different story, but I'd need to know more before answering.Is the median of the set {6, 15, j, k} greater than 10?
Thanks Matt sorry it's my keyboard problem, your quote is correctMatt@VeritasPrep wrote:It's impossible to tell what the prompt is giving us. 15 * j * 6 * k is an expression, not a set, so we don't know the set whose median we seek or how to do anything with 90jk.
If the prompt is asking
that's a different story, but I'd need to know more before answering.Is the median of the set {6, 15, j, k} greater than 10?
-
Matt@VeritasPrep
- GMAT Instructor
- Posts: 2630
- Joined: Wed Sep 12, 2012 3:32 pm
- Location: East Bay all the way
- Thanked: 625 times
- Followed by:119 members
- GMAT Score:780
OK, great!
{6, 15, j, k} can have a median less than 10 only if 15 is the largest number in the set. (If it isn't the largest, then our set would be {j, 6, 15, k} or {6, j, 15, k}, in which case the median is at least 10.5)
From here, I'd try a few sets. We could have j = 2, k = 7, which gives us {2, 6, 7, 15} and a median of 6.5, but we could also have j = 20, k = 70, which gives us {6, 15, 20, 70} and a median of 17.5.
{6, 15, j, k} can have a median less than 10 only if 15 is the largest number in the set. (If it isn't the largest, then our set would be {j, 6, 15, k} or {6, j, 15, k}, in which case the median is at least 10.5)
From here, I'd try a few sets. We could have j = 2, k = 7, which gives us {2, 6, 7, 15} and a median of 6.5, but we could also have j = 20, k = 70, which gives us {6, 15, 20, 70} and a median of 17.5.
